Mole Rats

Publication Title: 
Gerontology

BACKGROUND: Studies comparing similar-sized species with disparate longevity may elucidate novel mechanisms that abrogate aging and prolong good health. We focus on the longest living rodent, the naked mole-rat. This mouse-sized mammal lives ~8 times longer than do mice and, despite high levels of oxidative damage evident at a young age, it is not only very resistant to spontaneous neoplasia but also shows minimal decline in age-associated physiological traits.

Author(s): 
Lewis, Kaitlyn N.
Mele, James
Hornsby, Peter J.
Buffenstein, Rochelle
Publication Title: 
Nature

The naked mole rat (Heterocephalus glaber) is a strictly subterranean, extraordinarily long-lived eusocial mammal. Although it is the size of a mouse, its maximum lifespan exceeds 30 years, making this animal the longest-living rodent. Naked mole rats show negligible senescence, no age-related increase in mortality, and high fecundity until death. In addition to delayed ageing, they are resistant to both spontaneous cancer and experimentally induced tumorigenesis. Naked mole rats pose a challenge to the theories that link ageing, cancer and redox homeostasis.

Author(s): 
Kim, Eun Bae
Fang, Xiaodong
Fushan, Alexey A.
Huang, Zhiyong
Lobanov, Alexei V.
Han, Lijuan
Marino, Stefano M.
Sun, Xiaoqing
Turanov, Anton A.
Yang, Pengcheng
Yim, Sun Hee
Zhao, Xiang
Kasaikina, Marina V.
Stoletzki, Nina
Peng, Chunfang
Polak, Paz
Xiong, Zhiqiang
Kiezun, Adam
Zhu, Yabing
Chen, Yuanxin
Kryukov, Gregory V.
Zhang, Qiang
Peshkin, Leonid
Yang, Lan
Bronson, Roderick T.
Buffenstein, Rochelle
Wang, Bo
Han, Changlei
Li, Qiye
Chen, Li
Zhao, Wei
Sunyaev, Shamil R.
Park, Thomas J.
Zhang, Guojie
Wang, Jun
Gladyshev, Vadim N.
Publication Title: 
Nature

The naked mole rat (Heterocephalus glaber) displays exceptional longevity, with a maximum lifespan exceeding 30?years. This is the longest reported lifespan for a rodent species and is especially striking considering the small body mass of the naked mole rat. In comparison, a similarly sized house mouse has a maximum lifespan of 4?years. In addition to their longevity, naked mole rats show an unusual resistance to cancer. Multi-year observations of large naked mole-rat colonies did not detect a single incidence of cancer.

Author(s): 
Tian, Xiao
Azpurua, Jorge
Hine, Christopher
Vaidya, Amita
Myakishev-Rempel, Max
Ablaeva, Julia
Mao, Zhiyong
Nevo, Eviatar
Gorbunova, Vera
Seluanov, Andrei
Publication Title: 
Gerontology

BACKGROUND: Studies comparing similar-sized species with disparate longevity may elucidate novel mechanisms that abrogate aging and prolong good health. We focus on the longest living rodent, the naked mole-rat. This mouse-sized mammal lives ~8 times longer than do mice and, despite high levels of oxidative damage evident at a young age, it is not only very resistant to spontaneous neoplasia but also shows minimal decline in age-associated physiological traits.

Author(s): 
Lewis, Kaitlyn N.
Mele, James
Hornsby, Peter J.
Buffenstein, Rochelle
Publication Title: 
Antioxidants & Redox Signaling

SIGNIFICANCE: The oxidative stress theory of aging has been the most widely accepted theory of aging providing insights into why we age and die for over 50 years, despite mounting evidence from a multitude of species indicating that there is no direct relationship between reactive oxygen species (ROS) and longevity. Here we explore how different species, including the longest lived rodent, the naked mole-rat, have defied the most predominant aging theory.

Author(s): 
Lewis, Kaitlyn N.
Andziak, Blazej
Yang, Ting
Buffenstein, Rochelle
Publication Title: 
Nature

The naked mole rat (Heterocephalus glaber) displays exceptional longevity, with a maximum lifespan exceeding 30?years. This is the longest reported lifespan for a rodent species and is especially striking considering the small body mass of the naked mole rat. In comparison, a similarly sized house mouse has a maximum lifespan of 4?years. In addition to their longevity, naked mole rats show an unusual resistance to cancer. Multi-year observations of large naked mole-rat colonies did not detect a single incidence of cancer.

Author(s): 
Tian, Xiao
Azpurua, Jorge
Hine, Christopher
Vaidya, Amita
Myakishev-Rempel, Max
Ablaeva, Julia
Mao, Zhiyong
Nevo, Eviatar
Gorbunova, Vera
Seluanov, Andrei
Publication Title: 
Rejuvenation Research

There is an imperative need for exploring and implementing mitochondria-rejuvenative interventions that can bridge the current gap toward the step-by step realization of strategies for engineered negligible senescence (SENS) agenda. Recently discovered in mammals, natural mechanism mitoptosis-a selective "suicide" of mutated mitochondria-can facilitate continuous purification of mitochondrial pool in an organism from the most reactive oxygen species (ROS)-producing mitochondria.

Author(s): 
Prokopov, Arkadi F.
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